Final answer:
The sentence that best supports the theme of harmonious living in the passage is: 'The fire, fanned by the wind, grew stronger and stronger, and the people could not put it out.'
Step-by-step explanation:
The sentence that best supports the theme of harmonious living in the passage is: 'The fire, fanned by the wind, grew stronger and stronger, and the people could not put it out.' This sentence suggests that the fire represents a disruptive force that cannot be controlled, which contrasts with the idea of harmonious living. In a harmonious living environment, people are able to work together and resolve problems, but in this case, the fire is overpowering and destructive.